This antique meteorological record book, titled "Observing the Skies: Antique Meteorological Record Book Volume 2," was published in Washington in 1864. It contains 538 pages and was issued as part of the 36th Congress, 1st Session SED [unnumbered].
The book includes results of meteorological observations made under ion of the United States Patent Office and the Smithsonian Institution from 1…

This precision groove pulley has a 3/4" bore and a 9.00" outer diameter, making it suitable for use with a 4L belt trade size.
The fixed bore type ensures a secure fit, while the 1 groove standard V-belt design ensures efficient power transmission.
With a budget-friendly price point, this pulley is a reliable choice for light industrial applications.